NILFS (loop0): nilfs_get_block (ino=13): a race condition while inserting a data block at offset=0
------------[ cut here ]------------
kernel BUG at fs/buffer.c:2683!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 3031 Comm: syz-executor357 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : submit_bh_wbc+0x1c8/0x234 fs/buffer.c:2683
lr : submit_bh_wbc+0x1c8/0x234 fs/buffer.c:2683
sp : ffff800012a639c0
x29: ffff800012a639c0 x28: ffff800008631e04 x27: 0000000000000000
x26: 0000000000000001 x25: 0000000000000004 x24: 0000000000000002
x23: 0000000000000004 x22: 0000000000000004 x21: 0000000000000000
x20: ffff0000c9dd5b28 x19: 0000000000000000 x18: 00000000000000c0
x17: 20656c696877206e x16: ffff80000db49158 x15: ffff0000c9314f80
x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c9314f80
x11: ff80800008638480 x10: 0000000000000000 x9 : ffff800008638480
x8 : ffff0000c9314f80 x7 : ffff80000819545c x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000002 x3 : 0000000000000001
x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 submit_bh_wbc+0x1c8/0x234 fs/buffer.c:2683
 ll_rw_block+0x140/0x254
 __block_write_begin_int+0x4f8/0x95c fs/buffer.c:2036
 __block_write_begin fs/buffer.c:2056 [inline]
 block_write_begin+0x74/0x14c fs/buffer.c:2117
 nilfs_write_begin+0x70/0xc8 fs/nilfs2/inode.c:261
 generic_perform_write+0xf0/0x2cc mm/filemap.c:3738
 __generic_file_write_iter+0xd8/0x21c mm/filemap.c:3866
 generic_file_write_iter+0x6c/0x168 mm/filemap.c:3898
 call_write_iter include/linux/fs.h:2187 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x2dc/0x46c fs/read_write.c:578
 ksys_write+0xb4/0x160 fs/read_write.c:631
 __do_sys_write fs/read_write.c:643 [inline]
 __se_sys_write fs/read_write.c:640 [inline]
 __arm64_sys_write+0x24/0x34 fs/read_write.c:640
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall arch/arm64/kernel/syscall.c:52 [inline]
 el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581
Code: d65f03c0 97f19de8 d4210000 97f19de6 (d4210000) 
---[ end trace 0000000000000000 ]---